Machine for driving hones



Sept. l2, 1944. 1J. PALoTsl-:E

MACHINE FOR DRIVING HONES '7 sheets-sheet 2 Filed Feb. 28, 1944 Sept.12, 1944. J. J. -PALoTsEE v 2,358,247

' MACHINE FOR DRIVINGKHONES Filed Feb. 28,1944 vs heets-sheet s Sept 12,1944 V.1. J. PALoTsEE y MACHINE FORV DRIVING HONES Filed'Feb. 28, 1944v7 Sheets-Sheet 4 Sept.. l2, 1944.

J. J. PALOTSEE MACHINE FOR DRIVING HONEvS Filed Feb. 28, 7 Sheets-Sheet5 F/zg Sept 12, 1944- J. J. ISALOTSEE I MACHINE FOR DRIVING' HONES FiledFeb. 28, 1944 7 sheets-sheet e Sept 12, 1944- J. J. PALo'rsEE MACHINEFOR DRIVING HONES Filed Feb. 28, 1944 7 Sheets- Sheet 7 'drive shaft.

Patented Sept. 12, 1944 UNITED STATES PATENT OFFICE MACHINE FOR DRIVINGHONES John J. Palo'tsee, Youngstown, Ohio Application February 28, 1944,Serial No. 524,271

18 Claims.

This invention is a novel machine for driving expansible andcontractible hones, used for boring and grinding bores, said machineincluding I discharged within the hone together with means forcollecting the drippings from the ground bore and directing same againinto the fluid circuit.

Other objects of the invention are to provide a novel cabinet or baseupon which the machine stands whereby the drip pan which collects thefluid from the bore to be ground may be housed within the cabinet whennot in use to protect same from dust and dirt, the same beingprojectible from the cabinet and adjustable into different heightsbelowthe work when in use during the polishing or grinding operation. Astill further object is to provide a novel .trolley mounted upon anadjustable track adapted to support the work beingground by the hone.

Other objects of the invention will be hereinafter set forth.

I will explain the invention with reference to n the accompanyingdrawings, which illustrate several practical embodiments thereof, toenable others familiar with the art to adopt and use the same; and willsummarize in the claims, the novel Kfeatures of construction, and novelcombinations of parts, for which protection is desired.

In said drawings: Fig. 1 isa sideelevation of the machine and the upperportion of the cabinet, and showing the spindle, trolley, and pan innormal position of use.

Fig. 2 is a top plan view, partly broken away,

j of the machine shown in Fig. 1.

'showing the adjacent portions of the machine Fig. 8 is a section on theline 8-8, Fig. 7.

9 is a detail section showing a modificationY utilizing an adaptercollar adjusting the drive shaft for smaller sized homes.

Fig. 10 is a reduced top plan View chine shown in Fig. 1.

Fig. 11 is a side elevation of the machine shown in Fig. 10, looking atthe opposite side from Fig. 1.

vFig.V 12 is a front elevation of the machine shown in Fig. 10 showing amodied cabinet.

Fig. -13 is an enlarged elevation showing the trolley mounted upon thetrack.'

Fig. 14 is a vertical Vsection on the line I4-'I4,

Fig. 13.

. Fig. 15 is an elevation showing in dotted lines one modification ofthe oil-collecting pan housed within the cabinet, and showing in fulllines the pan in normal lowered position, and in dot. and dash lines thepan in elevated position.

Fig. 16 is a front elevation of Ythey cabinet looking at the slidingdrawer, and showing the pan in Fig.l5 housed within the cabinet.

Fig. 17 is an elevation showing a modified arrangement of arms foradjusting the height of the pan.

Fig. 18 is a section on the line I84-'I8, Fig. 17.

As shown, the machine comprises a casing I of substantial rectangularshape having rounded corners, and having an open top provided with acover4 2 hingedly mounted as at 3 to oneside of casing I; said casing Ibeing adapted to be supported upon a cabinet, hereinafter described.

Within the casing I adjacent the 'opposite ends thereof are horizontalbeams 4 carryingy bearings 5 (Figs. 4 and 5), for ahollow drive shaft 6,said of the mabearingsl 5 being preferably of ball or roller type. l

On shaft 6 is keyed a clutch collar l, Fig. 4, cooperating with a clutchdisk 8 secured by screws or the like to the adjacent face of a steppedpulley cone 9 having three steps 9a, 9b, and 9c loosely mounted on shaft6,' the stepped cone 9 forming a means for driving shafts at differentspeeds. At the opposite end of the step cone 9 from the clutch disk 8 isa thrust bearing I0 (Fig. 4) engaged by one end of a coiled spring IIsurrounding shaft 6, the opposite end of spring I I lbeing engaged by anabutment I2spring IYI normally urging the assembly 8 and 9 towardsclutchcollar 1the abutment I2 comprising an adjusting nut v and lock nut forregulating the tension -of spring II and hence the pressure of clutch-disk 8 hone locks in the bore being ground.-

. 9b or 9c of cone 9 on shaft 6, the weight of motor I3 maintaining thetension of bolt I5 substantially constant for all engagements of belt I5with the stepped cone 9.

One end of shaft 6 extends through an end of casing I and carriesthereon a sliding sleeve I6 (Figs. 4, '7 and 9), the outer end of theshaft 6 having a tapped bore 6a therein receiving the threaded end I1a-(Fig. 7) of the'spindle I1 of the expansible hone, as hereinafterdescribed, said spindle I1 being hollow and forming a continuation ofthe bore of shaft 6. Sleeve I6 is nonrotatably but slidably mounted uponshaft 6, and means are provided for adjusting the position of sleeve I6on the shaft.

As shown in Figs. 4 and 6, at the inner end of sleeve I6 is a hexagonalenlargement I8, preferably shrunk orotherwise secured to said sleeve,said enlargement fitting within an opening I9 in a swingable lever 20,with pivot pins 2| passing through lever 28 and arranged diametricallyof the axis of sleeve I6, whereby lever 20 may pivot with respect to theenlargement I8 to shift sleeve I6 axially of'shaft 6. One end off-lever28 is pivoted by links 22 to a bracket 22a, mounted upon the side ofcasing I, while the other end of lever 20 is connected by links `23 with'a tapped sleeve 24 (Fig. 4). engaged by a threaded shafty l25 journaledin a bushing 26 in the end of casing I, said shaft 25 carrying on itsouter end ahand wheel 21 carrying calibrations 21a (Fig. 2) t0 visuallyindicate the external diameter of the hone carried by the shaft .6.Bushing 26 supports shaft 25 for rotation, but prevents axial"40movement of theshaft. Y

Thus, as hand wheel 21 is rotated, lever 20 will be pivoted toward oraway from the adjacent end of casing I, .the hexagonal enlargement I8 ofsleeve I6 shifting sleeve I6 axially of shaft 6. Preferably a coiledspring 28 is provided around sleeve I6 between the hexagonal-head 4I8Aand the adjacent end of casing I to absorb back lash and to preventplay between the parts, said spring 28 normally maintaining links 22 and23 substantially parallel with the shaft 6.

The adjustable hone carriedby the shaft 6 is preferably, not notnecessarily, similar to'that shown in my Letters Patent No. 2,332,463,dated decreased, in `the manner described in my aforementioned patent,the particular type of hone Aforming no part of my present invention.

The outer ends of the segments 36 are provided with`V inclined surfaces30h engaged bya conical head 3|'Y yieldably maintained thereagainst bymeans of a coiled spring 3Ia normallytending to urge head 3| toward theopposite end of spindle I I1, while lpermitting the head 3| to yield topermit the enlargementof the diameter'of` the hone" under adjustment.The opposite ends of segments 30 are provided with conical surfaces 38eengaged by a slidable member 32 carrying a similarly shaped conical head33 contacting the surfaces 30c, as shown in Fig. 7. Endless springs 38x(Figs '7, 8, 9) are provided around the segments 38 adjacent each end ofthe hone, said springs being housed in recesses 30g as shown and holdingthe segments in place when the hone is being decreased, i. e., whenVsleeve I6 is being backed away from the hone.

The opposite end of slidable member 32 is engaged by the outer end ofthe axially movable sleeve I6, a thrust bearing 32a being preferablyinterposed therebetween. By this construction, as sleeve I6 is shiftedaxially of shaft.6, the hone will be adjusted to a larger or smallerdiameter, this adjustment may be made while shaft 6 is being rotated bymanipulating the hand wheel 21. The bore |111: in spindle I1 forms acontinuation of the bore 6r of shaft 6, the inner end of bore |13: ofthe spindle being provided with ducts I1y (Fig. '7) leading totheexterior of spindle I1 adjacent 'the centers of the hone segments 30,whereby cutting Vfluid for assisting the hone segments 30 during theprocess of grinding or polishing may be supplied, the Huid-passingoutwardly between the segments 30 and into contact Ywith the cylindricalsurface which is-being ground.

In the form shown in Fig. 9, a modified member 32 is shown adapted foruse for mounting a small hone on the shaft 6. In this modification athreaded member -34 having a head 35 is mounted within bore 6a of shaft6, said member 34 having athreaded bore 34x receiving the threaded endof the vhollow spindle I1z ofthe smaller sized hone. An adapting collar36 is slidably mounted on spindle I1 and has one end engaging the end ofmember 32, a thrust bearing 32a being interposed therebetween. Theopposite end of adapting collar 36 receives the end yof the shaft 6 andengages the end of sleeve I6, whereby as sleeve I6 is adjust/ed axiallyof shaft 6 the sleeve I6 will shift the adapting collar 36, which inturn engages the member 32 carried on the spindle I1 so that Vthediameter of the related hone will be corredischarged between the honesegments 30V adjacent the centers thereof, as previously described.

The' fluid which `is supplied to the hone is contained in a` reservoiror tank 31 housed within the casing I (Figs. 4 and 5) and having anoutlet 38 leading to a pump 39 (Fig. 4) having a shaft 4 8 carrying arpulley 4I opposite a pulley 42 on shaft 6a belt 43 running aroundpulleys 4I and 42, as shown. Pump 39 forces' the fluid through pipe 44into a T-tting 45 (Fig. 4) on thel end of shaft 6 within the casing I,the Ifitting 45 communicating wtih the bore 6a: of shaft 6, whereby thefluid will be forced under pressure through bore 63: and will bedischarged as above described within the hone segments adjacent thecenters Y thereof.

'Ihe drippings and excess -fluid from the work drops into a pan`46adjustably mounted on the casing I or cabinet below the hone, the iiuidcollected `withinl the 4pan 46 passing through a flexible conduit orhose 41 the inner end of which communicates withtheinlet of tank V31,suitable screens 46a (Figi 2) being provided in the bottom of pan 46 tocatch any particlesof metal Vsuch as cuttings or the like, to preventsame from being carried over into the tank 31.

As shown in Figs. 1 and 2, in order to adjustably support the drip pan46, I preferably provide a post 48 having its upper end fixed in lug 49of casing I at the end adjacent the hone, said post being engaged by anadjustable vclamp 58 carrying an arm upon which the pan 46 rests.

In order to support the work being operated upon by the hone, I providea trolley 52 (shown more particularly in Figs. 1, 13 and 14) having aroughened upper surface 52a to prevent the work from sliding thereon,said trolley being preferably of inverted U-shape, carrying pairs ofspaced rollers 53 adjacent each end mounted upon shafts 53a, saidrollers rolling upon an inverted T-shaped track 54, having a cross pin54a at its outer end to prevent the trolley from rolling off of the endof the track. The sides ofthe trolley 52 preferably have portions 52bdepending below track 54, and rods 55 connect the depending portions 52hbelow track 54 to prevent the ends of trolley 52 from being liftedupwardly off of track 54.

Track 54 is horizontally disposed adjacent one side of casing I, and isadjustable both vertically and laterally of the casing. As shown, theinner end of track 54 is carried by a bracket 56 (Fig. 3) having avertically disposed slot 51 therein (Figs. 1 and 3) receiving threadedlugs 58 carried by casing I provided with nuts 58, whereby the bracket56 may be adjusted vertically upon casing I Aand locked in adjustedposition. The threaded studs 58 preferably extend from allattened boss68 on the outer face of casing I, as

shown more particularly in Figs. 1 and 2.

Bracket 56 carries horizontally disposed parallel arms 6I and 62provided with horizontal slots Gla and 62a respectively. On track 54adjacent the inner end is a xed shoulder or enlargement 63 (Fig. 1), andbeyond the shoulder the track 54 is threaded and cylindrical and adaptedto pass through slot Sla in the upper arm 6|, the inner end carrying anut 54 for securing track 54 in a horizontal adjusted position in thearm 6|.` A supporting brace 65 is provided adjacent the inner end oftrack 54, same having its upper end secured thereto in any desiredmanner and its lower end bent to extend parallel with track 54, the samecarrying an enlargement or shoulder 66 (Fig. 1) similar to shoulder63,'and a nut 61 on the threaded inner end of brace 65 locks the bracein slot 62awh'ereby the brace 65 may be shifted and locked in anyadjustable horizontal position along with the track 54. Thus the track54 may be shifted vertically as well as toward or from the shaft 6 ofthe hone, to accommodate the size and shape of the work, which work mayrest directly upon the roughened upper surface 52a of trolley 52, andmay be moved parallel with shaft 6 while supporting the work engaged bythe hone.

In Figs. l, 2 and 3, the. casing I is shown as I seating upon a cabinet16 having doors 1|y (Fig.

1) in one side, its upper portion forming a con- Y venient receptaclefor parts of the machine, while Vin the lower portion of cabinet 18, atone end, is

an opening 12 (Fig. 3) through which `a ,storage tank 13 for the cuttingfluid may be withdrawn,Y

' carrying a handle .15 whereby the storage tank may be shifted withrespect to the cabinet 18. If desired, the flexible tubing 41 from drippan 46 may discharge into the top of the Storage tank 13, as indicatedin dotted lines in( Fig. 1.

In Fig. 12 a modified cabinet 16 is shown,I having a door 'I'I in itsfront face at one side, giving access to shelves 'I8 or the like,extending to a central vertical partition 19; and having a door 8|] atthe other side of the partition into which the reserve or storage tankfor the cutting fluid may be housed, or into which space various sizesand types of hones may be stored.

In Figs. 15 to 18 a further modified cabinet structure 8| is shown,supporting base I, said cabinet 8| having an opening in its end belowthe shaft 6. Within cabinet 8| at opposite sides thereof are upper andlower angle bars 82 spaced apart to form guides for a slidingplate 83which may be pulled in and out 4of cabinet 8| from said opening, andwhich plate 83 supports the drip pan 48, the plate 83 having a verticalface plate 84 at its front end normally provided with a handle 85, thefront plate 84 closing the opening in the cabinet 8| when plate 83 isretracted or housed within the cabinet. Verticalplate 84 is preferablysecured to plate 83 by means of corner braces 86, to give rigiditythereto. Upon plate 83 adjacent the opposite sides thereof are anglebars 81 secured tothe upper surface thereof in par'- `al1el relation,said angle bars 81, as shown in Fig. 15, having elongated slots 88therein for the reception of pins 89 carried by the lowerl ends of crosslevers 90, the upper ends of which are secured as at 8| to pan 46 sothat,'when in use, the pan 46 may be adjusted to Various elevations withrespect to base plate 83, as shown in dot and dash lines in Fig.15; or,when desired to house the pan 46 to protect same from dirt and dust, thecross levers 98 maybe adjusted to permit pan 46 to be lowered to suchextent that same may pass through the opening in cabinet 8| so that theplate 83 and Vpan 46 may slide in a drawerlike fashion into the cabinet8|, as shown in dotted lines (Fig. 15.) y

As a further modification, in order to increase the range of verticaladjustment of pan 46, the cross arms 80 may be pivoted as at 88a (Fig.17)

and the lower ends of the links 90 carrying the 80, carrying pins 84 mayslidably engage slots 85 in horizontal membersv 96 underlying the pan46, so

. that as the toggle links formed by the cross arms are extended, thepins 88 and 94 at thelower and upper ends thereof will move inwardly intheir respective slots 88 and 95 until the same reach the innerends oftheir related slots. lThe form` shown in Fig. 17 is preferable to thatshown in Fig. 15, since in Fig. 17 the pan 46 will always be maintainedin a horizontal position, due to the fact that the toggle links 9|) arepivoted as at 90a at their crossing points.

I do not limit my invention to the exact forms n.

shown in the drawings for obviously changes may be made therein withinthe scope of the claims.

I claim:

1. A machine for driving expansible hones having a spindle carrying anadjustable collar, comprising a casing; a shaft journaled in said casingsleeve while the shaft is rotating, said sleeve having a head at itsinner end; a lever pivoted at one end in said casing adjacent said head;trunnions .on said head engaging VYthelever; .and said lshifting means`comprisingr a calibrated l',hand-wh'eel journaled Jon the casing, andascrew shaft operrated .bysaid hand wheel and having la threadedlengagement with the free `end of `said lever.

2. A machine for driving expansible hones Yhaving a spindle carrying anadjustable collar, compris-ing a casing; a yshaft journaled =in saidYcasing and adaptedto'support the hone spindle;

a sleeve axially 'adjustably kmounted `onfsaid shaft and engaging thehone adjusting collar 'and adapted to vary 4the external diameter ofsaid hone; means forrotating the shaft; meansfor :shifting the sleeveWhilefthe shaft' is rotating said sleeve having ahead at' its Vinnerend; a lever r,

pivoted atone end in said casing and `having an 'opening receiving saidhead; trunnions on-said Vhead within said opening and engaging saidJever; and said shifting meansg'comprising a4 calibrated hand wheeljournaled on said casing,.,

and a screw shaft operated by said hand wheel land having -a threadedengagement with the free end of said lever.

for shifting the sleeve while the shaft is rotating; Vsaid honespindle-being hollow and forming fa continuation of said hollow shaftand having ducts opening into the interior of the hone-ad jacent thecenter thereof; and means fordirectving cutting fluid through saidshaftand spindle.

4. In a machine as set forth in claim 3, said {sleevehaving a head atits inner end; a lever pivoted at one end in said casing adjacent saidhead; trunnions on said head engaging the lever; and said shifting meanscomprising a calibrated hand wheel journaled on the casing, and a screwshaft operated by said hand wheel and Vhaving a threaded engagement withthe free end of said lever.

5. -In a machine as set forth in claim 3, said sleeve having a head a1;.its inner end; Va `lever pivoted at one end in said casing and havingan opening Vreceiving Asaid head; trunnions YonV said head within saidopening andV engaging said -1e` ver; and said sluiting means comprisinga -calibrated hand wheel journaled on said casing, and a screw shaftoperated by said Ahand wheel and having a threaded engagement with thefree end of said lever.

6." In a machine as set forth in claim .3, said i directing meanscomprisinga tank, a fluid pump driven by said shaft and -receivingfluidfrom said tank; and a duct connectingfthe outlet of said V8. A machinefor driving expansiblehoneshav-l ing a spindle carrying an adjustablecollar, comprising a casing; a shaft journaled in said casing andadapted to support the hone'spindle; a sleeve axially adjustably mountedfon said shaft and engaging Vthe honeY adjusting -collar and adapted: 75

' hand wheel journaled on vthe casing, and a screw 'a3-58pm :tof-varytheexternal Vdiameterfof'` saidahone; means for rotating the shaft; fmean's-for shifting :the

sleeve-while the shaft `isrotating; means on the `casingforsupportingrthe work being honedpsaid sleeve Vhaving a head at itsinner end; a lever pivotedwat-oneendin said casing adjacent said fhead;-trunnions onsaid head `engaging the lever;

and -said shifting'means comprising a calibrated yhandwheeljournaled onthe casing, and a screw :shaftfoperated by said hand wheel and having athreaded vengagement with the free end of said lever.

`9. Afmachine for driving expansible hones havringaspindle carrying anadjustable collar, comprising acasing; a shaft journaled in said casingfand `adapted Ato supportthe hone spindle; Va sleeve faxiallyadjustablymounted on said shaft and engaging the hone adjusting collar andVadapted to vary the `external diameter of said hone; means -forrotating the shaft; means for shifting 4the sleeve while-the shaft isrotating; means on the Acasing for supporting the Work being honed, saidsleeve having -a yheadratits inner end; a lever `pivoted at one end insaid casing and having an -opening receiving said head; trunnions onsaid 4head within said opening and engaging said lever; and saidshifting means comprisingI a calibrated `hand wheel journaled on saidcas-ing, and a screw shaft operated by said hand wheel and having athreaded engagement with the free end of said lever.

10. A machine for driving expansible hones having aspindle carrying anadjustable collar,

shifting the sleeve while the shaft is rotating;

means on the casing for supporting Ythe work "beinghoned,"said'supporting means comprising a track 'vertically and'laterally adjustably mounted on saidcasing parallel Ywith said shaft;and a "Worksupp'orting trolley axially movably mounted 'on said track.

A 11. A machine for driving expansible hones having a 'spindle Carryingan adjusting collar,

comprising a'jcasing; a hollow shaft journaledV in said casing and'adapted Vvto support the hone 'spindle;'a sleeve axially adjustablymounted on said shaft and 'engaging the hone adjusting Vcollar andadapted to vary 'the external diameter of said hone; 'means 'forrotating the shaft; means 'for shifting the Vsleeve while the shaft isrotating;

"and said h'one spindle vbeing yhollow 'and forming 'a continuation'ofsaid hollow shaft and having ducts opening Y'into the interior of thehone adjajcent xthe center thereof; va fluid tank; a fluid #pumpreceiving iiuid from said tank and directling 'the fluidinto said hollowshaft; and a screen drip tank vertically adjustably mounted -below saidhone collecting the overflow therefrom; and

means for 'directingthe Voverflow back into said 212. In' .a machine asset forthin daim 11, said aslee've having a head at its inner end; alever pivoted'fat one' end in said casing adjacent said head; trunnionson V.said headengaging-the lever; Vandr'sai'dv shifting means comprisinga calibrated shaftf'operated by'said hand wheel and havinga H1threadedengagement with the free end of said sleeve having a head at its innerend; a lever pivoted at one end in said casing and having an openingreceiving said head; trunnions on said head within said opening andengaging -said lever; and said shifting means comprising a calibratedhandwheel journaled on said casing, and a screw shaft operated by saidhand wheel and having a threaded engagement with the free end of saidlever.

14. In a machine as set forth in claim 1l, said casing being supportedby a cabinet; a slidable drawer in said cabinet; and verticallyadjustable means on said drawer supporting the drip pan, whereby whenthe drawer is pulled open the pan may be raised under the hone andwhereby the pan may be lowered on said drawer and retracted with thedrawer within the cabinet.

15. In a machine as set forth in claim 11, saidcasing being supported bya cabinet; a slidable drawer in said cabinet; cross links'on said drawervertically supporting the drip pan, whereby when the drawer is pulledopen the pan may be raised under the hone and whereby the pan may belowered on said drawer and retracted with said drawer within thecabinet.

16. In a machine as set forth in claim 1l, said at their crossing pointsand slidably engaging guides on the drawer and on the pan to form togglelinks; whereby when the drawer is pulled open the pan may be raisedunder the hone and whereby the pan may be lowered on said drawer andretracted with said drawer within the cabinet. s

17. In a machine as set forth in claim 11, means on the casing forsupporting the work being honed.

18. In a machine as set forth in claim 11, means on the casing forsupporting the work being honed, said means comprising a trackvertically and laterally adjustably mounted on the casing parallel withthe shaft; and a work supporting trolley movably mounted on said track.y

` JOI-IN J. PALOTSEE.

